G3 qualified engineers available 24/7 across all 33 London boroughs for leaking cylinders, burst tanks, failed pressure relief valves and total loss of hot water. We aim to be with you in under 60 minutes — covering both vented and unvented systems — fixed price, no call-out charge.
🔒 Your details are never shared. We call back within 15 minutes.
or call us directly: 📞 020 1234 5678 — 24/7 Line
Available every day
365 days a year
Trustpilot rating 1,800+ verified reviews
London boroughs covered every day
Our emergency engineers attend all types of urgent hot water cylinder problems across London — 24 hours a day, every day of the year. No matter the time, our G3 qualified engineers are ready to be dispatched immediately. All emergency work is carried out at a fixed price agreed before we start.
Water escaping from the cylinder itself, a failed joint, or the connections to surrounding pipework.
Total loss of hot water — often caused by a failed immersion element, thermostat or internal fault.
A continuously running T&P or pressure relief discharge pipe indicates an unsafe pressure condition requiring immediate attention.
Brown or reddish hot water indicates internal corrosion — the cylinder is deteriorating and poses health risks.
A split or burst loft cold water tank causing flooding into the ceiling or down through the property.
An old or irreparable cylinder needing same or next-day emergency replacement to restore hot water.
Fixed prices agreed before we start. No call-out charge. No surprise extras. These are our standard rates — your engineer will confirm the exact cost before beginning any work.
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💡 All prices are fixed and agreed upfront. No call-out charge ever. Materials included in the quoted price. If the job is more complex than expected, your engineer will explain the cost and get your approval before proceeding.
Taking these steps immediately can reduce water damage to your property significantly while you wait for our engineer.
Most cylinders have a dedicated isolation valve on the cold supply pipe. Turning it off will stop more water entering and is usually enough to slow or stop a leak.
If the cylinder is leaking or has failed, turn off the immersion heater at the wall switch and set the boiler to hot water off. This prevents heating an already compromised system.
Contain any dripping water to protect flooring and prevent water from reaching electrical fittings or the ceiling below.
A continuously running discharge pipe from your unvented cylinder’s pressure relief valve is a safety issue — stop drawing hot water until the engineer arrives.
From your call to a fixed repair — in four clear steps.
Call our 24/7 emergency line or fill in the form above. Tell us your borough, the emergency, and your details. Takes under 2 minutes.
We dispatch the nearest available Gas Safe engineer immediately. You receive an SMS with their name, photo and estimated arrival time.
Your engineer assesses the problem and confirms the fixed price before starting work. You approve the price — no surprises on the invoice.
Hot water restored. Building Regulations compliance certificate issued for unvented work. Written job report emailed the same day.
Our engineers are stationed across every London borough. We dispatch the nearest available plumber the moment you call — aiming to be with you in under 60 minutes, day or night.
We never charge a call-out fee — even at 3am on a bank holiday. You pay only for the work done, at the fixed price your engineer agrees with you before starting.
Unvented cylinder work is legally restricted to G3 qualified engineers under Building Regulations Part G. All our unvented cylinder work is carried out to this standard, with compliance certificates issued on completion.
We cover both types of hot water cylinder across all London property types — from gravity-fed vented cylinders in older houses to high-pressure unvented systems in new-builds.
Over 2,400 verified Trustpilot reviews from London homeowners — many specifically for our emergency bathroom response service.
All emergency repairs and replacements come with our 12-month workmanship guarantee. If anything we have repaired develops a fault within 12 months, we return and fix it at no charge.
Read all reviews on Trustpilot →
“Unvented cylinder started discharging from the relief pipe at midnight — water running down the outside wall. Engineer arrived in under an hour, replaced the faulty pressure relief valve, and issued the Building Regulations certificate the same visit.”
“Old vented cylinder in our Islington flat started leaking from the base, directly above the kitchen. Engineer isolated it within the hour and the replacement was fitted the next morning. Fixed price, no surprises.”
“Immersion element failed and we had no hot water for a family of five. Called at 8am, engineer arrived by 9.30, diagnosed the element fault immediately, replaced it and had us back up and running before lunch.”
Don’t wait. Call our 24/7 emergency line or submit your request and we’ll have an engineer with you in under 60 minutes.
Click your borough to see emergency bathroom plumbing services and response times near you.
All-purpose 24/7 emergency cover for any urgent plumbing issue.
Full bathroom renovation — strip-out to sign-off, fixed price.
Kitchen, bathroom, toilet or external — cleared same day.
Leaking, blocked or faulty cistern — same-day repair or replacement.
No call-out charge. Fixed prices. Engineer dispatched in minutes across all 33 London boroughs. 24/7, 365 days a year.
